Hardkorr 210Ah Lithium (LiFePO4) Slimline Deep Cycle Battery W/ Bluetooth
SKU: 74836770462

Hardkorr 210Ah Lithium (LiFePO4) Slimline Deep Cycle Battery W/ Bluetooth

Sale price$1125.00 Regular price$1250.00
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Hardkorr 210Ah Lithium (LiFePO4) Slimline Deep Cycle Battery W/ BluetoothHardkorr 210Ah Lithium (LiFePO4) Slimline Deep Cycle Battery w Bluetooth Bluetooth Monitoring App Monitor your Hardkorr 210Ah Lithium batterys key data wirelessly through Bluetooth connection. Simply download the Hardkorr Battery app, available for iOS and Android devices, to access detailed battery information: KEY INFORMATION State of charge Current voltage Available capacity Status Health DETAILED INFORMATION Current voltage Net current in out

Hardkorr 210Ah Lithium (LiFePO4) Slimline Deep Cycle Battery w/ Bluetooth

Bluetooth® Monitoring App
Monitor your Hardkorr 210Ah Lithium battery’s key data wirelessly through Bluetooth® connection. Simply download the Hardkorr Battery app, available for iOS® and Android® devices, to access detailed battery information:

KEY INFORMATION

  • State of charge
  • Current voltage
  • Available capacity
  • Status
  • Health

DETAILED INFORMATION

  • Current voltage
  • Net current in/out
  • Cycle life
  • Temperature

CELL STATUS

  • Current voltage of each cell to ensure balance

Handy Remote Reset Switch
The Battery Management System (BMS) in all Hardkorr lithium batteries includes a protection circuit that activates if the voltage drops below 10.0V, preventing damage by putting the battery into ‘sleep’ mode. Previously, resetting the battery was difficult, but with Hardkorr batteries, you can easily reset the over-discharge protection by connecting the included remote reset switch to the battery and holding the button for 5 seconds. The button can also be flush-mounted into your 12V setup for convenience.

Oversized Terminals
The Hardkorr 210Ah Slimline battery features oversized terminals for easy and reliable direct +/- connections. These oversized terminals improve installation and ensure enhanced reliability for off-grid power needs.

Slimline Design for Space Efficiency
With a narrow 50mm profile, the 210Ah Slimline battery is perfect for space-conscious installations in 4x4 vehicles, trailers, or boats. Its slim form factor allows it to be mounted behind rear seats or up on a canopy wall, leaving you more room for other gear. The battery can be mounted in any orientation, and with eight brackets included, you have flexible mounting options to suit your setup.

High-Quality Construction
The 210Ah Slimline battery is engineered using high-quality aluminium-encased prismatic cells, ensuring durability and vibration resistance. At just 25kg, it’s lightweight enough for rugged travel but powerful enough to meet all your off-grid energy needs. This battery delivers 210Ah of usable power, perfect for running 12V fridges, lights, pumps, and even larger devices.

Powerful Performance
With a continuous discharge rate of 250A, the 210Ah battery can power up to 2500W from an inverter, enabling you to run your favourite 240V appliances, such as coffee machines, toasters, and induction cooktops. This capability makes it a standout choice for off-grid adventures. Plus, the Battery Management System (BMS) allows you to link up to four of these batteries in parallel or series, creating larger battery banks of up to 840Ah or systems operating at 48V.

Specifications:

  • Nominal voltage: 12.8V
  • Capacity (C5): 210Ah
  • Max series/parallel config: 4S/4P
  • Normal charge voltage: 14.4V ± 0.2V
  • Max charge current: 105A
  • Max discharge current (constant): 250A (1C)
  • Max discharge current (100ms pulse): 840A
  • Discharge cut-off voltage: 10V
  • Charge temperature range: 0°C to 55°C
  • Discharge temperature range: -20°C to 60°C
  • Storage temperature range: -5°C to 45°C
  • Ingress protection: IP52
  • Self-discharge rate: <3% per month
  • Weight: 25.0kg
  • Dimensions: 710mm (L) x 580mm (W) x 50mm (H)
  • Bracket dimensions: 50mm
  • Certifications: UN38.3, UL 1642, IEC62133 – 2:2017, IEC 62619:2022

The Hardkorr 210Ah Lithium Slimline Deep Cycle Battery offers exceptional performance and reliability for off-grid living, camping, and touring. Its slim design, Bluetooth® monitoring, and powerful discharge capacity make it an excellent choice for powering your adventures.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 74836770462

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4.4 ★★★★★
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Verified Purchase
phan_graph
West Palm Beach, US
★★★★★ 4
Great buy
Color: Blue+Red
My dogs kill every toy. They arrived very agressive chewers. These have lasted way longer than most balls have. Great value
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
M
Verified Purchase
megs2168
Massapequa, US
★★★★★ 5
If your dog loves tennis balls, you NEED these
Color: Azure+Orange, Color: Azure+Orange
Raising any puppy is tough. Raising a German Shepherd puppy has often left me questioning my life choices. So I was ecstatic the day that my 60-lb puppy decided that he loves tennis balls and occupied himself for 2 hours without needing constant intervention. Naturally, my immediate response was to make sure we had a constant supply of large tennis balls for dogs available. Now my puppy loves mischief, but he’s not an aggressive chewer. And I was irritated to discover that every brand and size of tennis ball broke within an hour max of play. By simply playing fetch and batting the ball around with his paws, every single tennis ball split into 2 halves. We needed something better! These squeaky balls are exactly that! They come in a 2-pack. I gave my pup the 1st one a week ago and it’s still going strong! We play fetch in the backyard, he brings it into the doggy pool with him, it rolls around in the dirt and can be rinsed off easily. It’s by far his favorite toy, and he takes it everywhere with him. Finally a squeaky ball that can keep up with my dog! These are the perfect size, texture, bounce, squeak, everything. These are the ONLY squeaky balls I will buy from now on. Five stars for sure!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026
B
Verified Purchase
Brad
Phoenix, US
★★★★★ 5
Really are indestructible. Amazing product.
Color: Blue+Red
Wow! Really indestructible. Our large dogs have destroyed other “indestructible” toys in less than an hour and these are amazing. They squeak, which our dogs love (we hate) and they float when they go into our pool. IF they ever do wear out or are lost I will definitely buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
K
Verified Purchase
Kelsey
Los Angeles, US
★★★★★ 5
Durable squeaky ball for chewers
Color: Blue+Red, Color: Blue+Red
These are great! My 54 lb GSP loves them and it’s the only thing she cannot destroy! She’s currently 1 year and we have had the balls for several months. We have this brand and similar ones too. They float, bounce, and squeak. The ridges are good for chewing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
S
Verified Purchase
Stephanie Dutey
Pawtucket, US
★★★★★ 5
Finally a Toy My Pitbull Hasn’t Destroyed in 5 Minutes
Color: Blue+Red, Color: Blue+Red
I have a 65 lb pitbull who destroys most toys almost immediately, so I’m always skeptical when products claim to be “indestructible.” Most toys last maybe a few minutes in my house before pieces are everywhere. These have actually held up surprisingly well. The material feels durable and thick enough to handle really aggressive chewing, and so far my dog hasn’t been able to destroy them like he does with most other balls and squeaky toys. That alone makes these worth it to me. I also really like the size. They’re large enough that I don’t have to constantly worry about him accidentally swallowing them or choking while playing, which is a huge plus for bigger dogs. The squeaker inside also keeps him interested longer since he usually gets bored quickly with toys that don’t make noise or bounce around well. If you have a strong chewer or larger dog and you’re tired of replacing destroyed toys constantly, these are definitely worth trying.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026

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